Can bitwarden_rs tolerate being clustered?

My answer on that post you refer to still applies.
So, in short, yes it could work with some caveats to keep in mind.

  • Attachments probably need to be on some shared storage. (Same goes for icons etc…)
  • The rsa key’s used for the JWT need to be shared.
  • Websockets will not work fully if using round-robin.